Free calculators for square footage, paint, tile, fencing, gravel and seven more home projects. Enter your room's numbers and get a materials list before you're standing in a supply aisle guessing between two box sizes.
From a single room to the whole yard - estimates in seconds.
Area for rooms, lots and L-shaped spaces.
Open calculator →Tons and cubic yards for driveways and beds.
Open calculator →Gallons of paint for any room and coats.
Open calculator →Posts, rails and pickets for your yard.
Open calculator →Tiles needed for floors and walls with waste.
Open calculator →Every tool here runs a published formula, not a house rule someone made up, and builds in a waste factor so the number you get is one you can actually hand to a cashier.
The estimating guide and the how-to articles walk a project room by room, so a 12x15 bedroom and a 15x20 living room get different numbers instead of one generic rule of thumb stretched over both.
Guides like flooring installation cost and painting cost by room sit next to the calculators that size the job, so you can budget labor and materials in the same visit instead of two separate searches.
Every calculator runs in your browser tab. There is no account, no saved project, and no server that ever sees your dimensions, so measuring a room you have not bought yet stays private.